Sharp FO-1470 Service Manual page 82

UX-510UA
FO-1470U
2. Description
2-1. Extension board unit
1. Remove the TEL/LIU PWB, control PWB and Power Supply PWB
from this unit, and mount the extension board unit instead.
•
Before connecting the wiring to the extension board unit, set the
test PWB switches to the fixed position.
2. The setting is as follows.
Cable
CNPW
DOOR SW
1
CNLIUA
CNLIUA
14
J17
TP2
J13
CHECK
CHECK
TEL/LIU
CONTROL
PWB
PWB
A set with a mounted
extension board unit
Connector Cable
CNPN2 QCNW-4723SCZZ
CNTH2 CCNW-4759SC01
CNCCD2 QCNW-4725SCZZ
CNMT2 QCNW-4726SCZZ
CNLED2 QCNW-4727SCZZ
CNSP2 QCNW-4728SCZZ
CNCS2 QCNW-4729SCZZ
CNPH2 QCNW-4731SCZZ
CNBZ2 QCNW-4732SCZZ
CNSNS QCNW-4730SCZZ
POWER
SUPPLY
PWB
RBNSNS
PINSNS
Cable color CNSNS
1. Brown RHS
2. Red DRSNS
3. Orange N.C.
4. Yellow RBN
5. Green PIN
The hook switch are operated by OR of the mechanical unit switch and
the test PWB switch. When performing installation in the machine unit,
set the test PWB switches to the fixed position.
Mechanical unit
Actual operation with mechanical unit
Hook SW ON/OFF operation
PWB sensor check
ON-HOOK
Hook SW
* Recording paper: ON
No recording paper: OFF
UNIT
Note: For the thermal head cable only, connect to the relay cable, not to
the relay PWB.
8 – 2
Connected to (PWB)
TP2 (TEL/LIU)
DOOR SW (Control)
—————
RBNSNS (Control)
PINSNS (Control)
PWB to be tested
ON-HOOK
ON/OFF operation
DON'T SEPARATE
RELAY CABLE